Dab tsi yog qhov txawv ntawm UPS thiab inverter?
UPS Uninterruptible Power Supply System
I. Txhais thiab Ua Haujlwm
UPS Uninterruptible Power Supply, tag nrho lub npe Uninterruptible Power Supply, yog lub zog tiv thaiv cov cuab yeej uas muaj lub zog cia khoom thiab siv inverter ua lub ntsiab chav tsev kom ruaj khov voltage thiab zaus tso zis. Nws tuaj yeem muab cov khoom siv hluav taws xob ruaj khov thiab tsis cuam tshuam rau cov khoom siv thaum lub zog hluav taws xob tsis zoo lossis cuam tshuam, thiab tiv thaiv cov cuab yeej los ntawm lub zog tsis ua haujlwm.
II. Txoj Cai Ua Haujlwm
Lub hauv paus ntsiab lus ua haujlwm ntawm UPS feem ntau suav nrog plaub qhov txuas: rectification, zog cia, hloov dua siab tshiab thiab hloov pauv. Thaum lub zog tseem ceeb yog qhov qub, AC lub zog hloov pauv mus rau DC lub zog los ntawm rectifier thiab khaws cia rau hauv lub roj teeb. Nyob rau tib lub sijhawm, DC lub zog yog nkag mus rau lub inverter, uas hloov nws mus rau hauv lub zog AC ruaj khov thiab tso tawm rau lub nra. Thaum lub hwj chim loj yog qhov txawv txav lossis hluav taws xob tsis zoo, qhov hloov hluav taws xob zoo li qub hloov mus rau lub roj teeb lub zog kom ntseeg tau tias qhov hluav taws xob ruaj khov ntawm qhov kawg ntawm qhov kawg.
III. Cheebtsam
UPS system yog tsim los ntawm cov roj teeb pob, rectifier thiab inverter, hloov zoo li qub thiab lwm yam. Lub pob roj teeb yog siv los khaws cov khoom siv hluav taws xob; lub rectifier hloov AC zog rau DC fais fab; lub inverter hloov DC lub zog rau hauv AC lub zog tso zis; qhov hloov pauv zoo li qub paub hloov pauv sai thaum lub zog hluav taws xob tsis zoo.
IV. Kev faib tawm
Raws li lub hwj huam mov hom (kev ua hauj lwm hom) ntawm lub load, UPS muab faib ua peb hom: online backup hom thiab online sib tham sib hom. Rau online UPS, lub inverter yog ib txwm nyob rau hauv lub xeev ua hauj lwm tsis hais seb lub mains lub hwj chim yog ib txwm, thiab cov zis yog ruaj khov. Nws yog tsim rau cov chaw uas muaj kev xav tau siab rau lub zog zoo. Cov thaub qab UPS ncaj qha muab lub zog rau lub thauj khoom thaum lub zog tseem ceeb yog qhov qub, thiab lub inverter muab lub zog thaum lub zog loj yog qhov txawv txav. Nws yog qhov tsim nyog rau cov chaw uas tsis tshua muaj kev xav tau rau cov khoom siv hluav taws xob. Kev sib tham hauv online UPS muab cov txiaj ntsig zoo ntawm kev ua haujlwm siab ntawm hom thaub qab thiab lub zog zoo ntawm hom online.
V. Application Scenarios
UPS yog dav siv hauv computer kev ruaj ntseg, tsheb thauj mus los, aerospace, kev kho mob, kev tswj hwm kev lag luam thiab lwm yam. Piv txwv li, nyob rau hauv cov chaw zov me nyuam cov ntaub ntawv thiab cov chav neeg rau zaub mov, UPS tuaj yeem ua kom muaj kev ua haujlwm zoo ntawm cov servers thiab cov khoom siv cia thiab tiv thaiv cov ntaub ntawv ncaj ncees; nyob rau hauv cov chaw kho mob, UPS tuaj yeem ua kom lub zog ntawm cov chaw tseem ceeb xws li chav ua haujlwm thiab chav saib xyuas mob hnyav kom ntseeg tau tias muaj kev nyab xeeb ntawm cov neeg mob.
VI. Qhov Zoo Thiab Qhov Tsis Zoo
Qhov zoo muaj xws li kev tiv thaiv cov cuab yeej, muab lub zog thaub qab, thiab ua kom lub zog zoo. Txawm li cas los xij, UPS kuj muaj qhov tsis zoo xws li tus nqi siab, hneev taw loj, thiab xav tau kev tshuaj xyuas thiab tu tsis tu ncua. Yog li ntawd, thaum xaiv thiab siv UPS, nws yuav tsum tau ua tib zoo xav txog qhov xav tau tiag tiag thiab cov nqi kho.
Inverter System
I. Cov tswv yim ntawm Inverter
Feem ntau, cov txheej txheem ntawm kev hloov AC lub zog rau hauv DC lub zog yog hu ua rectification, lub Circuit Court uas ua tiav cov kev ua haujlwm rectification yog hu ua rectification circuit, thiab cov cuab yeej uas paub txog cov txheej txheem rectification yog hu ua rectification device lossis rectifier. Raws li qhov tshwm sim, cov txheej txheem ntawm kev hloov DC lub zog rau hauv AC lub zog yog hu ua inversion, lub voj voog uas ua tiav cov haujlwm inversion hu ua inverter circuit, thiab cov cuab yeej uas paub txog cov txheej txheem inversion hu ua inverter ntaus ntawv lossis inverter. Niaj hnub nimno inverter technology yog kev tshawb fawb thiab thev naus laus zis uas kawm txog kev tshawb xav thiab kev siv ntawm inverter circuits. Nws yog kev siv thev naus laus zis raws li kev siv tshuab hluav taws xob, khoom siv hluav taws xob semiconductor, thev naus laus zis tswj niaj hnub, niaj hnub siv hluav taws xob hluav taws xob thev naus laus zis, semiconductor conversion technology, pulse width modulation (PWM) technology thiab lwm yam kev qhuab qhia. Nws feem ntau suav nrog peb ntu: cov khoom siv hluav taws xob semiconductor sib xyaw thiab lawv cov ntawv thov, inverter circuits thiab inverter tswj tshuab.
II. Lub hauv paus ntsiab lus ua haujlwm thiab cov qauv ntawm inverter
Lub inverter feem ntau yog tsim los ntawm DC input, lub zog hloov dua siab tshiab, lim thiab tso zis ib feem. Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog kwv yees li hauv qab no: DC yog inverted los ntawm lub zog hloov dua siab tshiab (feem ntau yog ib lub voj voog tsim los ntawm ntau lub zog hloov khoom siv xws li IGBTS) los tsim cov AC zaus, uas yog lim tawm los ntawm lub lim kom tshem tawm cov zaus siab. harmonics thiab thaum kawg tso tawm du AC.
III.Classification Thiab Application Scenarios Ntawm Photovoltaic Inverters
Photovoltaic inverters tuaj yeem muab faib ua centralized inverters, hlua inverters, thiab lwm yam inverters (distributed inverters thiab micro inverters) raws li lawv lub zog. Qhov sib txawv tseem ceeb ntawm peb yog tias tib lub peev xwm ntawm inverter sib txawv thiab daim ntawv thov teb txawv. Cov hlua inverter feem ntau yog siv nyob rau hauv tsev neeg faib photovoltaics thiab me me thiab nruab nrab kev lag luam thiab kev lag luam ru tsev photovoltaics.
Centralized Photovoltaic Inverters:Nws muaj qhov zoo ntawm cov khoom siv hluav taws xob loj, cov thev naus laus zis paub tab, lub zog hluav taws xob zoo, thiab tus nqi qis, tab sis nws qhov siab tshaj plaws lub zog nrhiav qhov hluav taws xob ntau yog qhov nqaim, cov khoom siv hloov pauv hloov tau qis, thiab lub sijhawm tsim hluav taws xob luv luv. Nws yog tsuas yog siv nyob rau hauv loj centralized photovoltaic fais fab chaw nres tsheb.
Txoj hlua Photovoltaic Inverter:Cov txheej txheem inverter yog taug qab qhov siab tshaj plaws lub zog taw tes ntawm ib txoj hlua ib leeg lossis ob peb txoj hlua ntawm cov khoom siv hluav taws xob sib cais, thiab tom qab ntawd txuas lawv mus rau AC daim phiaj hluav taws xob tom qab inversion. Ib txoj hlua inverter tuaj yeem muaj ntau lub zog siab tshaj plaws taug qab modules, thiab ib lub tshuab muaj peev xwm feem ntau qis dua 200kW. Qhov siab tshaj plaws lub zog taug qab qhov hluav taws xob ntau ntawm txoj hlua photovoltaic inverter yog qhov dav, qhov kev tivthaiv yog hloov tau, thiab lub sijhawm tsim hluav taws xob ntev. Ntxiv mus, nws muaj zog ceev ceev thiab yooj yim installation thiab txij nkawm. Nws tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm qhov sib txawv ntawm daim ntawv thov ib puag ncig xws li sab hauv tsev thiab sab nraum zoov, thiab siv dav hauv cov chaw siv hluav taws xob me, xws li tsev neeg faib hluav taws xob tsim hluav taws xob, me me thiab nruab nrab kev lag luam thiab kev lag luam ru tsev fais fab, thiab lwm yam.
Distributed Inverter:Nws sib txuas cov centralized inverter zoo ntawm cov loj centralized photovoltaic inverters thiab decentralized MPPT nrhiav qhov zoo ntawm txoj hlua photovoltaic inverters: nws ua tiav cov nqi qis thiab kev ntseeg siab ntawm centralized inverters thiab siab zog tsim ntawm txoj hlua inverters.
Micro Inverter:Lub inverter hom yog tias txhua lub micro inverter feem ntau sib haum rau ib qho lossis ob peb photovoltaic modules, thiab txhua qhov photovoltaic module tuaj yeem taug qab nyias. Qhov siab tshaj plaws lub zog taw tes yog txuas nrog AC fais fab mov tom qab inversion. Lub peev xwm ntawm micro inverter feem ntau yog qis dua 5kW. Nws yog dav siv nyob rau hauv tsev neeg photovoltaic zog tsim tshuab xws li tsev nyob ru tsev thiab lub tshav puam.